Preprint Article Version 1 This version is not peer-reviewed

Experimental and Analytical Characterization of Drop Impact Behavior for a Mobile Haptic Actuator

Version 1 : Received: 4 May 2017 / Approved: 4 May 2017 / Online: 4 May 2017 (11:39:49 CEST)

A peer-reviewed article of this Preprint also exists.

Choi, B.; Kwon, J.; Jeon, Y.; Lee, M.G. Development of Novel Platform to Predict the Mechanical Damage of a Miniature Mobile Haptic Actuator. Micromachines 2017, 8, 156. Choi, B.; Kwon, J.; Jeon, Y.; Lee, M.G. Development of Novel Platform to Predict the Mechanical Damage of a Miniature Mobile Haptic Actuator. Micromachines 2017, 8, 156.

Journal reference: Micromachines 2017, 8, 156
DOI: 10.3390/mi8050156

Abstract

Impact characterization of linear resonant actuator (LRA) is studied experimentally by newly developed drop tester, which can control various experimental uncertainty such as rotational moment, air resistance, secondary impact and so on. The feasibility of this test apparatus was verified by comparison with free fall test. By utilizing a high-speed camera and measuring the vibrational displacement of spring material, the impact behavior was captured and the damping ratio of the system was defined. Based on the above processes, the finite element model was established and the experimental and analytical results were successfully correlated. Finally, the damage of the system from impact loading can be expected by developed model and as a result, this research can improve the impact reliability of LRA.

Subject Areas

drop test; impact analysis; reliability; haptic actuator; linear resonant actuator (LRA)

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